Balsam tool fails to import GLTF model with many materials

When importing rather large (50MB) gltf file with multiple materials, the import tool generates QML code that has duplicate materials and thus causes Qt DS to lock down.

Bonus tip: Importer should do some basic sanity checks like if the array for materials is like 32k long and items on the qml file are only couple hundred then it would prompt of error/warning.